Japan Post tracking URL from a tracking number

Japan Post (JP) tracking numbers follow this format: S10 format ending in JP. ShipShim detects the carrier from the number and returns the direct tracking link.

Example: number in, tracking URL out

Example tracking numberRR475263531JP
Tracking URLhttps://trackings.post.japanpost.jp/services/srv/search/?requestNo1=RR475263531JP&locale=en

This format is distinctive, so ShipShim identifies Japan Post from the bare number — no hints needed.

Get the Japan Post tracking link via API

curl -X POST https://shipshim.com/api/v1/track \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"tracking_number": "RR475263531JP"}'

Response:

{
    "tracking_number": "RR475263531JP",
    "carrier": "Japan Post",
    "country": "JP",
    "tracking_url": "https://trackings.post.japanpost.jp/services/srv/search/?requestNo1=RR475263531JP&locale=en",
    "confidence": 100,
    "matches": [
        {
            "carrier": "Japan Post",
            "country": "JP",
            "confidence": 100,
            "tracking_url": "https://trackings.post.japanpost.jp/services/srv/search/?requestNo1=RR475263531JP&locale=en"
        }
    ]
}

Get a free API key   Read the API reference — the free tier includes 100 calls/month.

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